Frankincense trees at the edge of the Rub' al-Khali, the Empty Quarter

Shisr, site of the excavation of Ubar, ancient center of the frankincense trade

Sinkhole that may have been part of the destruction of Ubar. People standing at the center of the horizon give an idea of the size of the hole.

Reconstruction above the sinkhole

More of the sinkhole

More of the reconstruction, and vegetation, showing the reason Ubar and then Shisr were here...water in the desert

More reconstruction and vegetation

And more reconstruction and vegetation

Tourist center, showing a movie about Ubar and artifacts. And it was cool in there too.

The Empty Quarter...Rub' al-Khali

Collecting sand

And collecting pictures